THE COCCIDAE OF SOUTH AFRICA. 15 



" Second stage female broadly ovate, slightly narrowed posteriorly, marginal 

 spines continuous, resembling those in the adult. Antennae of seven segments, 

 the third being the longest, the rest of the segments subequal in length. Legs 

 scarcely longer than the antennae ; coxa rather broad. Mentum uniarticulate. 

 Groups of spinnerets occupying relatively the same position as in the adult, but 

 there are only about 60-70 individual spinnerets in each group ; they are also 

 larger and more distinctly separated than in the adult. Derm in the region of the 

 anal cleft finely squamose, with a large subcutaneous tube ; there is also a similar 

 tube just within the margin opposite the anterior stigmata. 



" Larva elongate ; position of the compound spinnerets as in the adult and nymph. 

 Mentum monomerous. Antennae of six joints, the third equalling the length of 

 the fourth, fifth and sixth together. Marginal spines forming a continuous series." 



Habitat : On tree euphorbia. East London, and stems of oleander, Capetown 

 (Fuller, 1898). 



Collection No. : 107. 



Genus Aclerda, Sign. 

 Adult 9 naked, a mere sac containing eggs at maturity, with normal mouth 

 parts, but legs and antennae absent. 

 Larva greatly elongated, with parallel sides. 



210. Aclerda digitata (Ckll.). 



Pseudolecaniiim digitatmn, Ckll.. Ann. Mag. Nat. Hist. (7) ix, p. 24, 1902. 



Aclerda digitata (Ckll.) Fernald, Catalogue, p. 210, 1903. 



Professor Cockerell's description is as foUows : — 



" 5, pyriform, with the hind end pointed ; about 2J mm. long ; dark ferruginous, 

 shiny, producing some cottony material. End of abdomen strongly chitinized, 

 with the form usual in the genus. The diagnostic characters, as in all species of 

 the genus, are derived mainly from the larva, the female being a mere bag of eggs. 



" Larva extremely long and narrow, length 600, breadth 160/<. Anterior extremity 

 truncate, crenulate, with six short blunt, finger-tip-like spines ; a row of fifteen 

 blunt spines down each side of body ; no dorsal spines ; legs well developed, 

 anterior tibia 60, its tarsus 30 ^ long ; the tibia has a constriction about 27 from 

 base, making it look almost 2- jointed, this being more or less apparent on all the 

 legs ; tarsal digitules long, with small knobs ; claw-digitules shorter, fiUform, 

 knobbed. Antennae 24 apart at base and 30u from anterior end of head ; 6- 

 jointed, joints measuring : (1) 18, (2) 12, (3) 27-33, (4) 20, (5) 21, (6) 30. Anal 

 ring small, circular, without bristles on its margin, but posterior to it are set four 

 bristles, of which the inner two are shortest ; anterior to anal ring is a row of four 

 finger-hke blunt spines ; on each side is a caudal bristle, about 190// long, and beyond 

 each of these a pair of finger-like spines ; anterior to and a little laterad of each 

 caudal bristle is a small round gland. The last two segments have each a pair 

 of bristles on the ventral surface, those on the last being twice as long as those on 

 the penultimate segment." 



Habitat : On grass. Natal ; collected by C. Fuller, 1901. This species has not 

 feeen found again. 



Collection No. : 134. 



